Published on:2026-05-24 Click:25
10-core power and data ROV tether cable, neutrally buoyant. Foamed PUR, 10 conductors for combined power and multi-channel data in a single buoyant ROV tether.
The 10-core neutrally buoyant ROV tether provides ten independent conductors for a flexible mix of power supply and data channels in a foamed PUR buoyant jacket. With ten cores, the integrator can allocate conductors freely: for example, 2 power cores (supply + return) + 8 signal cores (4 twisted pairs for Ethernet and RS-485), or 4 power cores (2 zones, supply + return each) + 6 signal cores. The foamed polyurethane (PUR) jacket uses a micro-cellular expanded jacket compound with a bulk density lower than seawater (~1.025 g/cm³), giving the cable near-zero or positive net buoyancy. This eliminates tether sag and reduces drag force on the ROV, improving vehicle manoeuvrability and reducing tether management workload during subsea operations.
| Parameter | Specification |
|---|---|
| Total Conductors | 10 x stranded tinned copper |
| Core Mix | Power + data (allocation per spec) |
| Jacket | Foamed micro-cellular PUR |
| Buoyancy | Neutrally buoyant |
| Voltage Rating | 300V |
| Optional Shielding | Individual pair or overall braid |
| Strength Member | Kevlar optional |
| Custom | Core mix, CSA, shielding, buoyancy, length |
Request datasheet, custom length, or OEM pricing: sales@rovcable.com -- Shanghai Kabel Intelligence Technology Co., Ltd.
The jacket is manufactured from a micro-cellular expanded (foamed) polyurethane compound. During extrusion, a controlled foaming agent creates millions of tiny closed-cell air pockets within the jacket wall. These air cells reduce the bulk density of the jacket below that of seawater (~1.025 g/cm³), producing positive or neutral net buoyancy. The jacket retains all the abrasion resistance, oil resistance, and flexibility of standard PUR while achieving the buoyancy needed for ROV tether applications.
Yes. Buoyancy (positive, neutral, or slightly negative) is tuned by adjusting the foam cell density in the jacket compound and the jacket wall thickness. Specify the required net buoyancy per metre (in g/m) and the water salinity (fresh / brackish / seawater) when ordering. We can also add a Kevlar or Dyneema strength member to increase tensile strength without significantly changing buoyancy.
